The Accabonac Road and North Main Street Bridges, located in the Village of East Hampton along the Montauk Branch, were constructed in 1895. Separated by about 500 feet, the North Main Street Bridge is the westernmost bridge and currently has a clearance of 11.33 feet. The Accabonac Road Bridge, the easternmost bridge, has a clearance of 10.75 feet. These low-hanging bridges have been the site of many accidents over the years caused by trucks striking the bridges, resulting in train delays in both directions while LIRR crews worked to determine the bridge’s safety and structural stability before restoring train service. In 2015, there were 9 incidents in which vehicles struck the overpasses, reiterating the need to improve safety and reliability for both vehicles and LIRR passengers by replacing these low-hanging bridges. The LIRR will raise the vertical roadway clearance of these bridges with the installation of new single span steel bridge structures. The new height clearance will allow trucks to safely pass underneath the bridges.
The project will take 18 months to complete and includes the installation of new bridge structures, abutments, retaining walls and site drainage. The project is expected to be completed by the end of 2019 and the estimated cost is $21 million. Bridge removal and replacement for both bridges will take approximately 23 days and road detours will be in effect.